Improvement in gas and water cocks



2 Sheets-Sheet 1.

M. R. OOLVIN. Gas and Water 000k.

No; 214,367. Patented Ap ri|1 5, 1879.

FIGLEL FIG-1- WITNESSES- INVENTOR- N.FETERS. PHOTO-l-WNOGRAFNER.WASHINGTON. D G

2 Sheets-Sheet 2.

M'. R. GOLVIN. Gas and Water Cook.

Patehted April 15,1879.

WITNESSES INVENTOR- N PETERS. PHOTO LITNOGRAPN UNITED STATES- PATENTOFFICE.

MIGHEAL R. COLVIN, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN GAS AND WATER COCKS.

Specification forming part of Letters Patent No. 214,367, dated April15, 1879; application filed September 7, 1378.

To all whom it may concern:

Be it known that I, MICHEAL R. GoLvIN, of Worcester, in the county ofWorcester and State of Massachusetts, have invented a new and usefulImprovement in Gas Cocks for Lanterns and Services, and Stop and WasteCocks for Water-Pipes, which improvement is fully set forth in thefollowing specification and accompanying drawings.

In describing and illustrating I have shown and described the lanterncock, the various forms being alike in principle, but diifering slightlyin construction.

Figure 1 is a side view of my improved lantern-cock. Fig. 2 is a frontview, and Fig. 3 a view of the plug of the cock removed from the barrel.Fig. 4 is a View of the cook in its ordinary use to let on and shut offthe supply of gas to a lantern. Fig. 5 is a view of the cock in positionto receive oil or liquor for oiling or cleansing the cock and service.

The object of my invention is to furnish a ready method of oiling thecock, and a convenient means of restoring communication between theburner and the main through the service pipe when the latter has becomeobstructed by frost, napthaline, or from other causes.

For this purpose, besides the usual opening through the plug,(designated by the letter A in Fig. 3,) there is another smaller openingleading from the end of the handle of the cock to the side of the plug,(shown by the dotted lines marked B in Fig. 3.)

In the figures, O is an adjustable stop,which, when in its ordinaryposition, (that shown by the full lines marked 0 in the figures,) limitsthe movement of the cock to a quarterturn, the end b of the stop Ostriking against the shoulders a a, and is in its mode of operationexactly like the ordinary stop in gas cocks, and serves the samepurpose. While the plug is in position to let on or shut off the gas,the opening B is either shut ofi' entirely by its end being closed bythe side of the barrel, or it opens a passage through the burner. When,however, the stop 0 is turned back into the position shown by dottedlines 0 in Figs. 2 and 3, the end I) of the stop is withdrawn beyond theshoulders at a by the action of the cam 61 upon the side of thespring-Wire of which the stop 0 consists, thus allowing the plug to beturned into any position. By revolving into the position shown in Fig.3, the opening A would obviously be shut off, and B would communicatewith the service, allowing the passage of oil, liquor, &c., used inthawing and cleaning, or for blowing through the service to clean it.

In cases where it is necessary to blow into the lantern-service, forconvenience, a tube bent at the end is inserted into the opening B, thetube being long enough to project outside the lantern.

In oiling, the oil is poured into B, and a groove cut in the plug allowsthe oil to run some distance along it, and a turn of the handle oils theentire surface of the plug.

It is evident that the adjustable stop 0 may be made in many other formsto withdraw the end b from the action of the shoulders at a; but Iprefer this method on account of its simplicity and strength.

This cock may be also used as a stop and waste cock for water-servicesin houses where it is necessary to shut off the water, and at the sametime drain the pipes in the house, to prevent freezing. It is superiorto the ordinary form, as the water can be conveniently caught.

Having thus described my invention, what 1 claim as new, and desire tosecure by Letters Patent, is

1. A cock having a passage, B, and adjustable stop G, substantially asshown and described, and for the purposes set forth.

1 2. The plug D, having, besides the usual passage A, another passage,B, opening through the side of the plug, substantially as shown anddescribed, and for the purposes set forth.

3. Acock having an adjustable stop, 0, substantially as shown anddescribed, and for the purposes set forth.

MICHEAL It. GOLVIN.

Witnesses:

O. F. PRICHARD, G. A. LYNCH.

